If you try to turn your phone on and nothing happens (no sounds or lights), try charging your battery, it may be dead. If this doesn't work, you have have a defective battery and it may need replacing. If that is the case, see "Replacing Battery" repair guide.

If the screen is blank when you turn on the phone, but you can still hear the phone starting up, you have what is commonly called "the white screen of death" and must take the phone to a Nokia Care Point.

If the thumbwheel still moves but has no effect on the cursor, its possible that there is excess dust buildup in close proximity to the wheel. Try blowing very hard into the gap between the wheel and housing.

If you insert your Simcard into your phone and you see the display "Please insert Simcard" then the Simcard is most likely not seated properly. To seat it properly, you will first need to have the device turned off before you insert the SIM card. Try this:

The SIM card door is covered by a rubber casing that peels back.

1. Pull back the rubber flap to access the SIM card door. The flap needs to be pulled back from the top left corner of the Sidekick above the "Menu" key.

2. Insert the SIM card into the slot with the gold contacts facing up and the cut corner facing out. When you release the SIM card, make sure it is locked into position behind the catch so it does not spring out.